Operations helper

docker-data-move.sh

Bundled from the tool-tl/docker-data-move.sh project and republished through helper.sh for direct execution, operational handoff, and multilingual documentation.

One-liner

curl -fsSL helper.sh/docker-data-move.sh | sudo bash

curl -fsSL helper.sh/docker-data-move.sh | sudo bash -s -- --auto --yes

Raw file

Raw script Upstream repository

Requirements

Linux host
Docker installed
rsync installed
root privileges
jq optional for safer JSON edits

Best for

Move Docker from a full root or home filesystem onto a larger mount
Standardize recovery steps for low-disk Docker hosts
Reduce manual mistakes when updating Docker daemon.json

Highlights

Detects the current Docker Root Dir automatically
Scans local disks and suggests migration targets by free space
Backs up the old Docker data directory and daemon config before switching

Recommended procedure

Inspect the current Docker data-root and estimate required free space.
Pick an appropriate target path interactively or via --auto.
Stop Docker services, rsync the data, update daemon.json, and restart Docker.
Verify the new Docker Root Dir and confirm containers are healthy.

Safety notes

Review the script before running it on a production host.
Prefer interactive mode first when the storage layout is unfamiliar.
Confirm backups and target capacity before adding --yes.

Scenario article

Best use cases for docker-data-move.sh in real operations

A field guide for using docker-data-move.sh when Docker storage outgrows the system disk and manual migration becomes risky.

Read article

CentOS 7 maintenance and recovery

Keep legacy CentOS 7 hosts installable and maintainable when yum repositories fail, mirrors expire, or Docker data needs to be moved off a crowded disk.

Open topic

Problem pages

How to move Docker data-root on CentOS 7

Move Docker data away from a crowded root or home filesystem before the host runs out of disk.

Open page